<!DOCTYPE html>
<style>
body {
  margin: 0;
}
#box {
  width: 100px;
  height: 100px;
  background-color: green;
  -webkit-box-reflect: below 20px;
}
#positioned {
  position: absolute;
  top: 10px;
  left: 400px;
  width: 50px;
  height: 50px;
  background-color: blue;
}
</style>
<!--
Tests paint invalidation of positioned object when its ancestor changes reflection.
Passes if there is no red.
-->
<div id="box">
  <div id="positioned"></div>
</div>
